Boat lift



Aug. 9, 1966 F'i1ed June 14. 1965 C. W. KRAMLICH BOAT LIFT 2 Sheets-Sheet 1 INVENTOR CHARLES W KRAM LICH ATTORN EY Aug. 9, 1966 c. w. KRAMLICH BOAT LIFT 2 Sheets-Sheet 2 Filed June 14, 1965 lNVENTOl- CHA F\LES W. KRAMLICH ATTORNEY United States Patent O 3,265,024 BOAT LIFT Charles W. Kramlich, 1931 Church St Wauwatosa, Wis. Filed June 14, 1965, Set. N0. 463,746 3 Claims. (Cl. 114-45) This inventien relates to improvements in a beat lift and more particularly te the mechanism for lifting a beat, in a floating deck, -above the surface ef the water in which the deck is fleating.

lt is an ebject of this inventien te previde a pulley system which may be eperated manually from a single point and which Will elevate a beat in a substantially even rate threugheut the lang-15h and width ef the beat.

Anether ebject is te provide a beat lifting cable and pulley system fer a fleating deck which is easily assembled, eflicient in Operation and may be maintained in ellicient operatien by any ene, even theugh he may not be skilled.

In the drawings v FIG. 1 is an end view illustrating a floating deck meered te a permanent deck and supperting a sail beat (shown in broken lines) above the surface ef the water.

FIG. 2 is an enlarged transverse sectional view ef the ileating deck shown in FIG. 1 With the beat lift lewered.

FIG. 3 is a diagrammatic view ef the mechanisms for raising er lowering the beat lift.

FIG. 4 is a tep plan view of ene ef the pentoens with pertions remeved shewing seme of the mechanisms fer raising er lowering the beat lift.

FIG. 5 is a side view ef pontoon and beat lift as seen frem the right relative to FIG. 4.

The fieating deck comprises two substantially parallel ponteens A and B cennected in relatively spaced relation by means of U-brackets, C and D at each end of the fleating deck, each ef the brackets comprising a horizontal base channel iren 1 cennected at ene end to an upright channel iren 2 and at the ether end te an upright channel iren 3.

The channel iren 2 is cennected, at its upper end, in any suitable manner, te the pontoon B and the channel iren 3 is cennected at its upper end te the pontoon A. Diagonal braces 4 and 4' are affixed te the base channel iren 1 and the upright channel irons 2 and 3 and serve to strengthen the U-shaped bracket and maintain the right angle relationship between the base and upright angle irons. They also serve as meunting elements fer the pulleys P1 and P2.

Slidably meunted for vertical mevement in the channels ef the vertical channel irons 2 and 3 ef each bracket C is a horizontal T shaped beat lift bar 5 previded with a plate 6 and pad 7 fer centact with the bettom ef a beat. As clearly indicated in FIG. 4, the ends 8 ef the beat lift bars 5 extend inte the channel ef the uprights 2 and 3 and are thereby guided in their vertical mevernent.

Bach pontoon has a deck =10 fermed ef planks 11 laid transversely of the ponteons and resting on and anchered te relatively spaced side beards 12 and 12'. Spanning the space between side beards is a series -ef relatively spaced spanners-13 secured te the bottom edges ef the side boards 12. Guide bars :14 extend lengitudinally ef the pontoon in relatively spaced relation to each ether and are secured to the spanners 13. Se-called styrefoam pads 15 are pesitioned between guide bars 14 and are secnred te the spanners 13 by :rneans ef the clamping beard 16, belts 17 extending through the pads 15 and into the spanners 13. The pads 15 serve as fleats which support the Weight of the fleating, deck and a beat S raised abeve the surface W ef the water.

The mechanisrn fer raising and lowering the beat, supported by the lift bars 5, cemprises a pulley system, shown diagrammatically in FIG. 3, is centrolled by the manual- 3,265024 Pateni:ed August 9, 1966 ly operated reel 20 dispesed beneath the deck 10 ef ene ef the pentoens and having its crank 21 abeve the deck fer easy access. A cable 22 extends from the reel 20, about a pulley 23 and is anchered at its end to the side beard |1'2' ef the pontoon at 24. The pulley 23 is rotatably ca-rried by a link 24' at ene end thereof, the epposite end being previded With an aperture 25 which receives correspending ends of cables 31 and 32, the ehds 30 being secured te the link 24. As will be seen in FIGS. 4 and 5, the side beard 12 is sletted at 33 and two pulleys 34 and 35 are rotatably meunted therein in relatively spaced relatien. Cable 3 1 asses areund pulley retatably mounted en link 41, ever pulley 34, ever pulley 42 rotatable en link 43 and is anchered at 44 0n side beard 12.

Caible 32 passes ever pulley 45, retatably meunted en link 41, ever pulley 35, ever pulley 46, rotatably mounted on link 47 and is anchered -at 44 011 the side beard 12. Link 411 is anchored at 50 to the cress bar 51 secured te the side be-ards 12-12.

Cables 54 and 55 are secured te the link 43 at 5:6. Gable 54 asses ever the pulley 60, rotatably journalled on the upright channel 3 at 61, and extends downwardly te the eye belt 62 which is suitably secured te ene end of beat litt I-beam 5. Gable 55 passes ever the pulley 63 which is retatably jeurnalled at 64 in the side beard 12. The cable 55 then extends downwardly and passes around the pulley P1, which is rotatably jeurnalled at 66 en the brace 4, then extends herizentally abeve in substantially parallel relationship to the base channel iren =1 0f the U- -bracket D and passes ever the pulley P2, which is rotatably jeurnalled at 70 0n the brace 4' thence upwardly to the pulley 71 jeurnalled at 72 in the upper end of upright channel 3, thence areund pulley 7:1 and downwardly te the eye belt 72 secured te the end ef the beat lift channel 5 eppesite that te which the eye belt 62 is attached.

Ca bles 75 and 76 are secured at 77 te the link 47. Gable 75 passes ever pulley 78, jeurnalled at 79 011 the upright channel 2 of the b-racket C, and then downwardly te the eye belt 80 which is secured te -I-beam beat lift 5 at ene end thereof. The cable 76 passes ever pulley 81, rotatably journalled in the side =b0ard 12 at 8-2, thence downwardly and abeut pulley P 1 which is retatably meunted at on the bracket 5. The cable 76 then extends herizentally in substantial parallelism to the base channel iren 1 ef the U-bracket C te the pulley P2, journalled at 86 en the brace 4 thence upwardly and ever the pulley 87 journalled at 88 in the side beard '12. Gable 76 then passes downwardly and is attached at 87 te the end ef the beat lift 5 by means of an eye-belt 90.

The beat lifting mechanism eperates as follews: Assuming a beat, preferably a flat bettomed beat as shown in FIG. 1, is placed in the floating deck, as indicated in FIG. 1, the reel 20 is rotated, by means of the handle er crank 21, in a cleckwise directien, relative t0 FIG. 4. This Winds the cable 22 en the reel and threugh the link 24, cable 31, links 4143 and cables 54 and 55 raises the beat lift 5 vertieallly. Simnltaneensly, the cable 22 threugh link 24, cable 32, links 41-47 and cables 75 and 76, raises the beat lift 5, vertically. Thus, when the beat lifts 5 and 5' contact the bettern ef the beat, the beat is raised abeve the surface ef the water.

Cenversely, when it is desired to lower the beat, the reel 20 will be rotated ceunter-cleekwise to thereby permit the beat lifts 5-5 to move vertically downward.

Frem the feregoing disclosure, it is apparent that I have provided a floating deck with simple, efl1cient mechanism cernprising a manually operable pulley system fer raising er lowering a beat With reference te the surface of a bedy 0f water.

-It is also apparent that the floating deck may be easily transferred frem place te place and the mechanism fer raising and lowering a boat may be manually operated from a single point of power -application and that the boat Will at all times be, throughout its length and breadth, raised and lowered at a substantially constant rate.

Having disclosed my novel improvement, in a floating deck, a boat lift, the appended claims set forth what I believe to be my novel invention.

I claim:

1. In a floating deck comprising two relatively spaced pontoons, the combination with a pair cf relatively spaced U-brackets connecting said pontoons in spaced relation, said brackets each cornprising a substantially horizontal bottom channel iron having at each end a vertically disposed channel iron extending upwardly and connected at its upper end with an adjacent pontoon, the channel side of the vertical channel iron of each bracket facing each other and jointly serving as a guide, of a boat lift bar disposed above each f said bottom channel irons and having its ends slidably disposed in a channel of an adjacent vertical channel, and a manually operable pulley and cable systern mounted 0n one of said pontoons and comprising a manually operated reel, a cable to be wound on said real and controlling two second cable systerns simultaneously, one associated With one of said boat lift bars and the other associated with the other of said boat lift bars, each of said second cable systerns including a first cable connected with one end of one of said boat lift bars and a second cable connected with the other end of said one of said boat lift bars.

2. In a floating deck comprising two relatively spaced pontoons connected by a pair of relat-ively spaced U- brackets, each cornprising a substantially horizontal bar having at each end a channel iron extending vertically upward and connected with an adjacent pontoon and having their respective channels facing each other, the

4 combination with a boat lift bar extending between the vertically disposed channel irons associated with each of said horizontal bars, each end of said boat lifthaving end slidably disposed in corresponding channels of said vertically disposed channel irons of a cable and pulley system, a manually operable reel on one of said pontoons, said system including -a cable controlled by said real and in turn controlling two ca-blc and pulley mechanisms, simultaneously, one 0f cable and pulley mechanisms connected to one of said boat lift bars and the other of said cable and pulley mechanisrns connected to the other of said boat lift bars.

3. In a fioating deck comprising a pair 01. relatively spaced pontoons, a pair of U-brackets in relatively spaced relation longitudinally of said pontoons, the arrns of said U-brackets secured to said pontoons and extending vertically upward, the bases of said U-brackets being disposed relative to said pontoons, whereby when said dock is floating, said bases are beneath the water surface, the arms of each of said brackets coope-ratively serving as guides, the cornbination with a boat lift bar extending horizontally between the cooperating arrns of each U- bracket and guided thereby for vertical movement of a cable pulley systern for raising and lowering said boat lift bars in unison, said cable system including a manually operable reel on one of said pontoons, a cable controlled by said reel, two cable and pulley mechanisrns controlled by said cable sin1ultaneously, one cable and pulley mechanism connected to one of said =boat litt bars and the other of said cable and pulley mechanisms connected to the other of said boat lift bars.

N0 references cited.

MILTON BUCHLER, Primary Examina.

A. H. FARRELL, Assistant Examiner. 

1. IN A FLOATING DOCK COMPRISING TWO RELATIVELY SPACED PONTOONS, THE COMBINATION WITH A PAIR OF RELATIVELY SPACED U-BRACKETS CONNECTING SAID PONTOONS IN SPACED RELATION, SAID BRACKETS EACH COMPRISING A SUBSTANTIALLY HORIZONTAL BOTTOM CHANNEL IRON HAVING AT EACH END A VERTICALLY DISPOSED CHANNEL IRON EXTENDING UPWARDLY AND CONNECTED AT ITS UPPER END WITH AN ADJACENT PONTOON, THE CHANNEL SIDE OF THE VERTICAL CHANNEL IRON OF EACH BRACKET FACING EACH OTHER AND JOINTLY SERVING AS A GUIDE, OF A BOAT LIFT BAR DISPOSED ABOVE EACH OF SAID BOTTOM CHANNEL IRONS AND HAVING ITS ENDS SLIDABLY DISPOSED IN A CHANNEL OF AN ADJACENT VERTICAL CHANNEL, AND A MANUALLY OPERABLE PULLEY AND CABLE SYSTEM MOUNTED ON ONE OF SAID PONTOONS AND COMPRISING A MANUALLY OPERATED REEL, A CABLE TO BE WOUND ON SAID REEL AND CONTROLLING TWO SECOND CABLE SYSTEMS SIMULTANEOUSLY, ONE ASSOCIATED WITH ONE OF SAID BOAT LIFT BARS AND THE OTHER ASSOCIATED WITH THE OTHER OF SAID BOAT LIFT BARS, EACH OF SAID SECOND CABLE SYSTEMS INCLUDING A FIRST CABLE CONNECTED WITH ONE END OF ONE OF SAID BOAT LIFT BARS AND A SECOND CABLE CONNECTED WITH THE OTHER END OF SAID ONE OF SAID BOAT LIFT BARS. 